Los Angeles, Oct. 30 -- Hollywood actor Hugh Jackman mourned the passing of his longtime 'X-Men' co-star and friend Patrick Stewart, who died on Wednesday at the age of 86 following a brief battle with Alzheimer's and Lewy Body Dementia.

In an emotional Instagram post, Hugh Jackman shared a picture with the late actor and wrote, "We lost one of the greats of stage and screen today. And, in my book, a tremendous friend and man. I learned so much from him. I will miss you, Patrick Stewart, all of my days."

Jackman and Stewart famously portrayed the fan-favourite characters of Wolverine and Professor Charles Xavier in multiple X-Men films, including 2000's 'X-Men', 2006's 'X-Men: The Last', 2009's 'X-Men Origins: Wolverine', 2013's 'The Wo...